Binding post



July 25, 1933. c. l.. KNUTSON BINDING POST Filed March 19. 1951 Patented July 1933' 4@Lierre e sfr- A r-Esa eFME CARL L. KNUTsongoF MAYWoon; rrinrnors-nssenon "ro cYINerrMANUFAoTURmG coRPoRATioN, QEk CHICAGO, ILLINOIS, A comen-Arron `0F 'ILLINOIS` i :erivnmerosr My invention aimsito provideimprovements in b'ivndingposts.k

In thedrawing which illustrates preferred embodiments of my invention Fig.2; Fig; 2 is an elevation view of'a binding post attached to sheet material.;bymeansl fanut and screw` attachment; Fig. 3 is a section taken; on t of Figure 1; and

Fig. 4 is a section similar v-to *that shown in Fig. 3, but showing the -binding'post at'-v tached by a rivet and showingfthe relation of the parts when awire-i's not engaged `with the binding post. n

Referring y.to my inventionV as. illustrated byl they annexed drawing, VI haveshown a simple, durable and inexpensive binding post for making electrical ,connections between wires. and being particularly adaptedror use with radio, telephone. and likeinstalla tions. The particular binding posts/'elected for illustration includes a base 'member 1 formed from sheet metal, and being hollow. The base member provides a shell, tothe bottom Vend of which mayk be secured the head 2 of a screw 3 (Fig. 3) vor'afrivet 4 (Fig. 4) for attaching the binding post to asupport 5 of any suitable material; A

The base member, 1` may be'made ,in any suitable `manner but I i have vshown kit as:

being providedwith atQpwallG, the central portion of which isjpressed out to provide an aperture 7 surrounded byraV sleeve portion 8, as bestfshownin Figs. `1 and 3. I

[have also provided apertures 9fcut into .the

. side Wall of the base member to receive a wire v10 or wires as the 'use may require;

The bottom edge, 11 Lis r'olledloverv the 'edge tubular portion; 13. Withinthebase lis located Van enlarged portion, 14")Vv bearing Figure 1 -is a plan section of post installation tekenen the :line 1-1 of he i une 234e i Appliation melilla/Ieren 1e,` iesiQr-serilfNo.523,766.

vagainst the inner face ofthe wallfoic the basel'and connected by a flange 15 to the tubular portion 13, as illustrated.

Aj spring .16.v vis interposed between the closedend'l? of the tubularportion 13 and the headv 2 of theattaching member there by. normally pressing theiiange ljtoward the topwallkp'the base membervSi 'I i Whileit is not necesary 'Ihave provided a finger piece 18 attached to the upper end of 'the tubularportion '13 A thereby to prov ide means to press against when it is de# sirable to movethe axiallyy movable ypart V12 Y against the pressure of the springk ,16.

It is 'of course, apparent `thatthe binding` post' isY easily I assembledby firstainserting i the tubular portion, 13 lthrough f the aperture.

'Z from the openl bottom oi' the-basel. The springl 1 6'is then introduced andiinally the head 2f`of the attaching member is placed against the -spring'and theedgeV 11of the base isfrolled lover `vthehead 2 to hold-the parts in assembled relation.Y

useful'because,y a pieceof wire may; be easily and 'quickly' attached by merely pushing an "end through one 'of the apertures'9 (Fig. 1)

My improvedfbinding' postiis'particularly asv thel axially movable; member vis pressed downwardly, thereby" inserting the wire lbe- .tween theflange 15' and the top wall 6. It "should be.4 noted that Illiave bent the Vtop wall 6 adjacent .tothe aperturesQ toprovide' curvedlportions 6t which closely engage the 'wire to hold itagains't accidental removal 4laterally vvhile Vbeing yieldable to permit lateral engagementor disengagement when it is desirable to engage `ordisengage the wireVVV in thatv manner as compared to' a .straight Vline .engagement ordisengagement. .9o

When the pressure is released from the ngerlpiecelS the wire is gripped 'tightlyf V'A.wire may be entered into one ofthe l apertures from almost any angle and,l since it is` not necessarynto 'align'any aperture: or groove in the part 12 with an aperture 9,"my

device is particularly desirable.

As willA be understood by those skilled in the art, another connecting wire V`maybe attothe contact 2O l(Fig. Il) by soldering, depending upon the use and `the conditions. It should also beunderstood that wire means the bare end oi' a piece-of electrical current conductingk cable, a tip member, such as is used on phone cords andthe likev and that the wire7 may be engaged andr held bythe binding post when it is slipped`- into an aperture 9either sidewise, endwise,l

or vfrom practically any angle.

ldlhile I have illustrated and described .preferred embodiments of my inventioin` do not wish to be limited thereby, "because thescopeof my invention is best'defined by the `itollowing claims.

I claim i` I y i V1. A binding post having a hollow tubular base partr adapted to be attached in fixed relation to a supporting structure,l said base part having an aperture in the upper end smaller in diameter than the diameter of said base part'v and having a wire-receiving aperture at Vits periphery, Aan. axially movable member having a portion extending through the aperture inthe'iipp'er end of said base part to permit operation of'jsaid member and having an enlarged portion coniinedwithin i Y the base part and bearing against the inner Vsurface ofthe tubularbase spart, an V. anniilar shoulder` formed at tljie extreme upperfenclY of therei'ilarged portion of said. axially'mov` able member and providing the only means of the axially movable member for engagementwith a wire entered throughthe wire` receiving -aperture in the basepp'art"4 and` a` spring normallypressing said enlargedporf tion toward the upper endy of said base part ,to grip awire between said ,annular shoulder andthe material of said baserpjart adjacent to the wire-receiving aperturetheieinf Y 2. A-binding post having a hollow tubular base part adapted to be attachedj inflxed relation to a supporting structure, fsaid base part having an'aperture' inthe {upperf end smaller in diameter than thediameter of said base part and having a series of wire receiving apertures aroundits periphery, lan

axially movable sheet metal member having a hollow portion extending throughthe aperture in the base part'to permitoperation of rsaid member and having an enlarged iiange portion confined within the 5 base part, a

*springy normally pressing )said enlarged flange portion towardthe4 upper endof said .base part to grip a wire between said en.

largedilange portionand .the upper `end of said base' part vwhen inserted into `an .aperture inY said base part, an attaching part having a head 'secured to' the `lower end of said pbase part and said spring being interposed between the head of lsaid `attaching part and the upper'end of said hollow k.portion of said axially movableA member. Y

8.k A binding post having a hollowtubular lbase part adapted to be attached infixed relation to asupporting structure, said base parthaving an aperture in the upper end smaller in diameter than the diameter or" ysaid base part and having a wire receiving aperture at lits periphery, anV axially movable sheet metal member having a hollowl portion extending through the aperture in the base part to .permit operation of said member and having an enlarged flange portion conined within the base part, aspring normally pressing said enlarged flange portion "toward the upper end of said base part to gripa wire between said enlarged flange portion and the' upper end of said base part rwhen'inserted into the wire receiving aperk turein said basepart, 2in-attaching part i having a head secured to the lower end of said base partrand said 4spring being inter posed. between the head of' said attaching partand the upper'end of said hollow portion of said axially movable member.

4. A binding post including two hollour `sheetmetal parts one of lwhich comprises a base member having-an aperture in its top and a wire receiving aperture at its periph-- "ery and the other of which comprises an axially movable member having a wire member` and a hollowv portionv extending through 'the aperture inthe top of the base member for operation of said flange in combination with a spring lnormally pressing `upon said axially movable member to clamp a wire between said fia-nge and thetop of said base whenthe wire is inserted into the wir'e receiving aperture in said base member and said top of said base `having its edge bentdowiiwardlyadjacent to said `wire receiving aperturefor the purposes described.

5. A bindingpost having a vsheet metal having an kenlarged portion 14: movable in clamping j'iiange movable within the base Vbase member 1 andv an axially movable memthe base andfconnected by a flange 15 with Y the portion, 13 and a spring 16 normally pressing said flange 15 toward said top wall 16 to grip-a wirerbetween them when said wire is inserted into the aperture 9 and said top wall. @having a downwardly bent portionv 6a to engage the wire for the purposes described. i

i 6. A binding post having a sheet metal base member 1 and an axially movable mem `ber 12 assembled'therewith, said base member having' a top wall 6 through whichV is provided anV aperture 7 of smaller diameter A`than themdiameter of the base member and said base also having anV aperture 9 close to the 'top Wall, `V.and angled relative to a radial line transverse to the axis of the base member to permit the insertion oa Wire directly beneaththe top yWall 6, said axially movable member12 having ,a portion 13 extending through the aperture7'to permit operation thereof and having an enlarged portion 14 located entirely Within the base A base member 1 and an axially; movable member 12 assembled therewith,` said base mein? y berrhaving atop wallG through -Which is 7';

vprovided an aperture 7 and said base also having Ian aperture 9 to permit the insertion of a wire beneath the top rWall 6, said axially movable member 12havinga portion13 ex tendingthrough the aperture 7 toV permit-- operation thereof and having an enlarged portion 14 v movable( jin the base and kconneoted by a flange 15 with they portion 13 and a spring 16 knormally pressin'gsaid flange 15 4toward Said top ..vvall 6 to grip a Wire between them when said Wire is inserted into Y the aperture 9, and said base 1 havingv a p' sleeve 8 surrounding saidaperture 7 to pro` CARL L. `Krmfrsion.

yide a bearing for the portionll of the part 870 i 

